-96.74% is the change from 919 to 30
Calculation steps:
[( 30 - 919 ) ÷ 919] x 100 = -96.74%
Formula
Percentage change = [(30 - 919) / 919] x 100
Subtract the new number by the original number
30 - 919 = -889
-889 ÷ 919 = -0.9673558215451578
-0.9673558215451578 x 100 = -96.74%